The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 20, 1990
Filed:
May. 18, 1989
Iwasaki Electric Co., Ltd., Tokyo, JP;
Abstract
A metal vapor discharge lamp of the type comprising a translucent outer bulb that houses an arc tube and a starter which is connected in parallel to the arc tube and which includes a nonlinear capacitor, at least one of the lead wires of the nonlinear capacitor being connected to a support line whose thickness is such that it does not obstruct the oscillation due to any electrostriction of the nonlinear capacitor and such that it fuses whenever a large current flows through the nonlinear capacitor. Due to this construction, the oscillation of the nonlinear capacitor is not obstructed, so that a high-voltage pulse can be generated and the noise level lowered. Furthermore, since the support line is designed to be fused by a large electric current, thus breaking the electric circuit, any burning of the ballast can be prevented.